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A charge (uniform linear density = 9.4 nC/m) lies on a string that is stretched along an x axis from x = 0 to x = 3.0 m. Determine the magnitude of the electric field at x = 5.0 m on the x axis.
A disk of radius 1.2 cm has a surface charge density of 7.0 µC/m2 on its upper face. What is the magnitude of the electric field produced by the disk at a point on its central axis at distanc
The rock reaches a maximum height of 1.40×103m above the surface of the planet before it falls back down. What was the initial speed of the rock as it left the astronaut's hand? (Glob has no a
A 3.74 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=12.30 N at an angle theta=29.5 above the horizontal.(The force is being applied halfway up the b
When a driver brakes an automobile, the friction between the brake drums and the brake shoes converts the car's kinetic energy to thermal energy. If a 1400 kg automobile traveling at 35 m/s comes t
what is the maximum temperature of the water at the bottom of the falls? Assume all the kinetic energy of the water as it reaches the bottom goes into raising the water's temperature.
How far does each bullet travel before the observer hears the report of the rifle? Assume that the bullets encounter no obstacles during this interval, and ignore both air resistance and the vertica
How much tensile stress is required to stretch this muscle by 5.2% of its length? If we model the tendon as a spring, what is its force constant? If a 75 kg sprinter exerts a force of 13.0 times his
The string has a linear mass density of 0.01 kg/m, and the tension in the string is supplied by a mass hanging from one end. If the string vibrates in its third harmonic, calculate the velocity of t
By what percent does the peak load impact of jogging compress the knee cartilage of a 72.0 kg person? What would be the percentage for a lower-impact activity, such as power walking, for which the p
You are on an airplane traveling 30° south of due west at 150.0 m/s with respect to the air. The air is moving with a speed 38.0 m/s with respect to the ground due north What is the heading of t
When the electron is 1.00x10^-10m from the alpha particle, it is moving directly away from the alpha particle at a speed of 3.00x10^6m/s. Calculate the distance between the electron and alpha partic
How far from a -7.20 uCpoint charge must a2.30 uCpoint charge be placed for the electric potential energy of the pair of charges to be -0.400J(Take U to be zero when the charges have infinite separ
The New River Gorge bridge in West Virginia is a 518 m long steel arch. How much will its length change between temperature extremes -23°C and 39°C?
Two particles have a mass of 20 kg and 150 kg respectively. If they are 800m apart, determine the force of gravity acting between them.
The 4P state in potassium is split by its spin-orbit interaction into the 4P(3/2) (lamda = 766.41 nm) and 4P(1/2) (lamda = 769.90 nm) states. (The wavelengths are for the transitions to the ground
The drawing shows six point charges arranged in a rectangle. The value of q is 9.5 µC, and the distance d is 0.14 m. Find the total electric potential at location P, which is at the center of
An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an
Two capacitors, C1 = 6.00 µF and C2 = 14.0 µF, are connected in parallel, and the resulting combination is connected to a 9.00-V battery. (a) Find the equivalent capacitance of the combi
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 8.41 liters of water? (1 liter is equivalent to 1.00 × 10-3 m3) (b) W
Find the equivalent capacitance, and the energy contained in this equivalent capacitor. equivalent capacitance µF total energy stored J
NASA decides to build a house on the Moon, and to keep time they send up the grandfather clock from the problem above. However, when they install it they realized that someone made a big mistake bec
53.3-cm-long uniformly charged rod is sealed in a container. The total electric flux leaving the container is 5.15·106 N m2/C. Determine the linear charge density on the rod.